{"id":45038,"date":"2022-12-20T16:43:48","date_gmt":"2023-10-31T16:18:03","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45038-2\/"},"modified":"2024-04-29T06:12:22","modified_gmt":"2024-04-28T22:12:22","slug":"45038-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45038-2\/","title":{"rendered":""},"content":{"rendered":"

\u3053\u306e\u8a18\u4e8b\u306fRust\u3092\u89e6\u308a\u59cb\u3081\u3066\uff12\u65e5\u76ee\u306e\u521d\u5fc3\u8005\u304c\u66f8\u3044\u3066\u3044\u307e\u3059\u3002\u3053\u3046\u66f8\u3044\u305f\u65b9\u304c\u308f\u304b\u308a\u3084\u3059\u3044\u3001\u3053\u3053\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u306a\u3069\u3054\u6307\u6458\u3042\u308c\u3070\u304a\u9858\u3044\u3057\u307e\u3059\u3002<\/h3>\n

Rust\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u8a00\u8a9e<\/h2>\n

Rust\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u3092\u884c\u3063\u3066\u304b\u3089\u5b9f\u884c\u3059\u308b<\/p>\n

# \u30b3\u30f3\u30d1\u30a4\u30eb\r\n$ rustc hello.rs\r\n\r\n# \u5b9f\u884c \u3053\u308c\u306fhello.rs\u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u306e\u5b9f\u884c\r\n$ .\/hello\r\nhello, world!\r\n<\/code><\/pre>\n
\u753b\u9762\u51fa\u529b\u306b\u30c1\u30e3\u30ec\u30f3\u30b8<\/h1>\n
Rust\u3067\u306e\u753b\u9762\u51fa\u529b
\n$ println!(“\u3053\u3053\u306b\u51fa\u529b\u5185\u5bb9\u3092\u66f8\u304d\u8fbc\u3080”)<\/p><\/blockquote>\n
\u3053\u3053\u3067\u306e\u300c\uff01\u300d\u306f\u3001\u666e\u901a\u306e\u95a2\u6570\u3067\u306f\u306a\u304f\u3001\u30de\u30af\u30ed\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u3066\u308b\u3068\u3044\u3046\u610f\u5473\u3002
\n\u21d2\u30de\u30af\u30ed\u3092\u4f7f\u3046\u306e\u306f\u3001Rust\u306e\u9759\u7684\u578b\u4ed8\u304d\u8a00\u8a9e\u3068\u3044\u3046\u7279\u6027\u3068\u6240\u6709\u6a29\u30b7\u30b9\u30c6\u30e0\u304c\u95a2\u4fc2\u3057\u3066\u3044\u308b\u3002
\n\u21d2\u30de\u30af\u30ed\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u30c7\u30fc\u30bf\u578b\u3092\u624b\u8efd\u306b\u753b\u9762\u51fa\u529b\u3067\u304d\u308b\u3002
\n\u21d2\u3053\u306e\u753b\u9762\u51fa\u529b\u3092\u30de\u30af\u30ed\u306a\u3057\u3067\u3084\u308d\u3046\u3068\u3059\u308b\u3068\u3001\u81a8\u5927\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304b\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3002
\n\u30de\u30af\u30ed\u3092\u4f7f\u3063\u3066\u753b\u9762\u51fa\u529b\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u5c11\u306a\u3044\u30b3\u30fc\u30c9\u3067\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308b\u3002<\/p>\n
\u6570\u5b57\u3092\u57cb\u3081\u8fbc\u3093\u3060\u753b\u9762\u51fa\u529b<\/h2>\n
println!\u3067\u306f\u3001\u7b2c\u4e00\u5f15\u6570\u306b\u6587\u5b57\u5217\u3001\u7b2c\u4e8c\u5f15\u6570\u306b\u5024\u3092\u6307\u5b9a\u3057\u3066\u51fa\u529b\u3092\u884c\u3046\u3002
\n\u21d2\u4ee3\u5165\u3057\u305f\u3044\u90e8\u5206\u306b{}\u3092\u5165\u308c\u308b\u3002<\/p>\n
let \u5909\u6570\u540d = \u5024; # \u5024\u3092\u5909\u6570\u306b\u675f\u7e1b\u3059\u308b
\nprintln!(“\u2026\u6587\u5b57\u5217\u2026{}\u2026, \u4ee3\u5165\u3057\u305f\u3044\u5024”\uff09; # \u5024\u3092\u66f8\u5f0f\u306b\u5165\u308c\u8fbc\u307f\u753b\u9762\u51fa\u529b<\/p>\n
fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> ken_age<\/span> =<\/span> 20<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"\u30b1\u30f3\u306e\u5e74\u9f62\u306f{}\u6b73\u3067\u3059\"<\/span>,<\/span> ken_age<\/span>);<\/span>\r\n}<\/span>\r\n\r\n>>><\/span>\u30b1\u30f3\u306e\u5e74\u9f62\u306f20\u6b73\u3067\u3059<\/span>\r\n<\/code><\/pre>\n
\u56db\u5247\u6f14\u7b97\u306b\u30c1\u30e3\u30ec\u30f3\u30b8<\/h1>\n
fn<\/span> main<\/span>(){<\/span>\r\n   let<\/span> pen<\/span> =<\/span> 100<\/span>;<\/span>\r\n   let<\/span> eraser<\/span> =<\/span> 50<\/span>;<\/span>\r\n   let<\/span> count<\/span> =<\/span> 3<\/span>;<\/span>\r\n   println!<\/span>(<\/span>\"\u30da\u30f3\u3068\u6d88\u3057\u30b4\u30e0\u30921\u3064\u305a\u3064\u8cb7\u3063\u305f\u5408\u8a08\u306f{}\u5186\"<\/span>,<\/span> pen<\/span> +<\/span> eraser<\/span>);<\/span>\r\n   println!<\/span>(<\/span>\"\u30da\u30f3\u30923\u672c\u8cb7\u3063\u305f\u5408\u8a08\u306f{}\u5186\"<\/span>,<\/span> pen<\/span> *<\/span> count<\/span>);<\/span>\r\n}<\/span>\r\n\r\n>>><\/span>\r\n\u30da\u30f3\u3068\u6d88\u3057\u30b4\u30e0\u30921\u3064\u305a\u3064\u8cb7\u3063\u305f\u5408\u8a08\u306f150\u5186<\/span>\r\n\u30da\u30f3\u30923\u672c\u8cb7\u3063\u305f\u5408\u8a08\u306f300\u5186<\/span>\r\n<\/code><\/pre>\n
\u21d2\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306f\u6574\u6570\u306e\u8a08\u7b97\u3092\u3057\u3066\u3044\u308b\u3002
\n\u21d2150.0\u306e\u3088\u3046\u306b\u3001\u3059\u308b\u3068\u5b9f\u6570\u578b\u3068\u306a\u308b\u3002
\n\u21d2Rust\u306f\u3001\u578b\u306b\u53b3\u3057\u3044\u8a00\u8a9e\u306a\u306e\u3067\u3001\u6574\u6570\u3068\u5b9f\u6570\u3092\u660e\u78ba\u306b\u533a\u5225\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n
Rust\u306e\u57fa\u672c\u6587\u6cd5\u306b\u3064\u3044\u3066\u899a\u3048\u66f8\u304d<\/h2>\n
    \n
  • \n
      Rust\u306fmain\u95a2\u6570\u304b\u3089\u5b9f\u884c\u3055\u308c\u308b<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \u3000\u21d2Rust\u306fmain\u95a2\u6570\u304b\u3089\u5b9f\u884c\u3055\u308c\u3001\u95a2\u6570\u3092\u5b9a\u7fa9\u3059\u308b\u3068\u304d\u306f\u300cfn\u300d\u3092\u4f7f\u3046\u3002<\/ul>\n
        \/\/ \u3053\u3053\u304b\u3089\u5b9f\u884c<\/span>\r\nfn<\/span> main<\/span>()<\/span> {<\/span>\r\n    ptintln!<\/span>(<\/span>\"hello World!\"<\/span>)<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
          \u30b3\u30e1\u30f3\u30c8\u304c\u300c\/\/\u300d\u304b\u3089\u59cb\u307e\u308b<\/ul>\n
          \/\/ 1\u884c\u30b3\u30e1\u30f3\u30c8<\/span>\r\n\r\n\/*\r\n\u8907\u6570\u884c\u3067\u3082\r\n\u30b3\u30e1\u30f3\u30c8\u304c\r\n\u66f8\u3051\u308b\r\n*\/<\/span>\r\n<\/code><\/pre>\n
            \u7e70\u308a\u8fd4\u3057for\u6587<\/ul>\n
            \/*\r\nfor \u5909\u6570 in \u958b\u59cb..\u7d42\u4e86\u5024+1 {\r\n    \u7e70\u308a\u8fd4\u3059\u51e6\u7406\u6587\r\n}\r\n*\/<\/span>\r\n\r\n\/\/ 10\u304b\u3089100\u307e\u3067\u51fa\u529b\u3059\u308b\u51e6\u7406<\/span>\r\nfn<\/span> main<\/span>()<\/span> {<\/span>\r\n    for<\/span> i<\/span> in<\/span> 10<\/span>..<\/span>101<\/span> {<\/span>\r\n        println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> i<\/span>)<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
              \u6761\u4ef6\u5206\u5c90if\u6587<\/ul>\n
              \/*\r\nif \u6761\u4ef6\uff11 {\r\n    \u6761\u4ef6\uff11\u304cTrue\u306e\u3068\u304d\u306e\u51e6\u7406\r\n}\r\nelse if \u6761\u4ef6\uff12 {\r\n    \u6761\u4ef6\uff12\u304c\u3060\u3063\u305f\u3068\u304d\u306e\u51e6\u7406\r\nelse {\r\n    \u3059\u3079\u3066\u306e\u6761\u4ef6\u6587\u304cFalse\u3060\u3063\u305f\u3068\u304d\u306e\u51e6\u7406\r\n}\r\n*\/<\/span>\r\n\r\n\r\nfn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> count<\/span> =<\/span> 100<\/span>;<\/span>\r\n    if<\/span> count<\/span> %<\/span> 3<\/span> ==<\/span> 0<\/span> {<\/span>\r\n        println!<\/span>(<\/span>\"\uff13\u3067\u5272\u308a\u5207\u308c\u308b\"<\/span>);<\/span>\r\n    }<\/span> else<\/span> if<\/span> count<\/span> %<\/span> 2<\/span> ==<\/span> 0<\/span> {<\/span>\r\n        println!<\/span>(<\/span>\"\uff12\u3067\u5272\u308a\u5207\u308c\u308b\"<\/span>);<\/span> \r\n    }<\/span> else<\/span> {<\/span>\r\n        println!<\/span>(<\/span>\"\uff13\u3067\u3082\uff12\u3067\u3082\u5272\u308a\u5207\u308c\u306a\u3044\"<\/span>)<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u6587\u672b\u306b\u306f\u300c;\u300d\u3092\u4ed8\u3051\u3001\u3044\u3089\u306a\u3044\u4e38\u62ec\u5f27\u3092\u3064\u3051\u308b\u3068\u8b66\u544a\u304c\u51fa\u308b<\/ul>\n
                fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> a<\/span> =<\/span> \"hello\"<\/span>;<\/span>\r\n    if<\/span> (<\/span>a<\/span> ==<\/span> \"hello\"<\/span>)<\/span> {<\/span>\r\n        println!<\/span>(<\/span>\"\u3053\u3093\u306b\u3061\u308f\"<\/span>)<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\n$<\/span> rustc<\/span> exam3<\/span>.rs<\/span>\r\n>>><\/span>\r\nwarning<\/span>:<\/span> unnecessary<\/span> parentheses<\/span> around<\/span> `<\/span>if<\/span>`<\/span> condition<\/span>\r\n-<\/span>-><\/span> hello<\/span>.rs<\/span>:<\/span>3<\/span>:<\/span>8<\/span>\r\n |<\/span>\r\n3<\/span> |<\/span>     if<\/span> (<\/span>a<\/span> ==<\/span> \"hello\"<\/span>)<\/span> {<\/span>\r\n |<\/span>        ^<\/span>            ^<\/span>\r\n |<\/span>\r\n =<\/span> note<\/span>:<\/span> `<\/span>#[warn(unused_parens)]<\/span>`<\/span> on<\/span> by<\/span> default<\/span>\r\nhelp<\/span>:<\/span> remove<\/span> these<\/span> parentheses<\/span>\r\n |<\/span>\r\n3<\/span> -<\/span>     if<\/span> (<\/span>a<\/span> ==<\/span> \"hello\"<\/span>)<\/span> {<\/span>\r\n3<\/span> +<\/span>     if<\/span> a<\/span> ==<\/span> \"hello\"<\/span> {<\/span>\r\n |<\/span>\r\n\r\nwarning<\/span>:<\/span> 1<\/span> warning<\/span> emitted<\/span>\r\n\r\n\/\/ \u8b66\u544a\u306f\u51fa\u308b\u304c\u5b9f\u884c\u306f\u3067\u304d\u308b\u3002\u3064\u3051\u306a\u3044\u65b9\u304c\u3044\u3044\u304b\u3082<\/span>\r\n$<\/span> .<\/span>\/<\/span>exam3<\/span>\r\n>>><\/span>\u3053\u3093\u306b\u3061\u308f<\/span>\r\n<\/code><\/pre>\n
                Rust\u306e\u5909\u6570\u5b9a\u7fa9\u306b\u3064\u3044\u3066<\/h2>\n
                Rust\u3067\u306f\u3001\u5909\u6570\u3092\u300clet \u5909\u6570\u540d = \u5024; \u300d\u3068\u3044\u3046\u3088\u3046\u306b\u5ba3\u8a00\u3059\u308b\u3002\u5909\u6570\u306e\u5024\u306f\u3001\u5909\u66f4\u304c\u3067\u304d\u306a\u3044\u30a4\u30df\u30e5\u30fc\u30c0\u30d6\u30eb\u306a\u5909\u6570\u3068\u306a\u308b\u3002\u3053\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3057\u305f\u5f8c\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u3092\u884c\u3046\u3068\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3066\u3057\u307e\u3046\u3002
                \n\u21d2\u4e0d\u7528\u610f\u306b\u5909\u6570\u306e\u5024\u3092\u66f8\u304d\u63db\u3048\u3066\u3057\u307e\u3046\u3068\u30d0\u30b0\u3084\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u306b\u3082\u3064\u306a\u304c\u3063\u3066\u3057\u307e\u3046\u3002
                \n\u21d2\u3053\u306e\u3088\u3046\u306a\u4ed5\u69d8\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u610f\u56f3\u3057\u306a\u3044\u5909\u66f4\u3092\u9632\u6b62\u3067\u304d\u308b\u306e\u3067\u3001\u4fdd\u5b88\u6027\u5411\u4e0a\u306b\u3082\u3064\u306a\u304c\u308b\u3002<\/p>\n
                \u66f8\u304d\u63db\u3048\u53ef\u80fd\u306a\u5909\u6570\u3092\u5b9a\u7fa9\u3059\u308b\u306b\u306f\u3001<\/p>\n
                let mut \u5909\u6570\u540d = \u5024;\r\n<\/code><\/pre>\n
                \u3068\u3044\u3046\u3088\u3046\u306b\u5b9a\u7fa9\u3059\u308b\u3002<\/p>\n
                \u21d2mut\u306f\u3001\u300cmutable\u300d\u306e\u610f\u3002<\/p>\n
                fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> x<\/span> =<\/span> 10<\/span>;<\/span>\r\n    x<\/span> =<\/span> x<\/span> +<\/span> 1<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> x<\/span>)<\/span>\r\n}<\/span>\r\n\r\n$<\/span> rustc<\/span> exam<\/span>.py<\/span>\r\n\r\n>>><\/span>\r\n2<\/span> |<\/span>     let<\/span> x<\/span> =<\/span> 10<\/span>;<\/span>\r\n  |<\/span>         -<\/span>\r\n  |<\/span>         |<\/span>\r\n  |<\/span>         first<\/span> assignment<\/span> to<\/span> `<\/span>x<\/span>`<\/span>\r\n  |<\/span>         help<\/span>:<\/span> consider<\/span> making<\/span> this<\/span> binding<\/span> mutable<\/span>:<\/span> `<\/span>mut<\/span> x<\/span>`<\/span>\r\n3<\/span> |<\/span>     x<\/span> =<\/span> x<\/span> +<\/span> 1<\/span>;<\/span>\r\n  |<\/span>     ^^^^^^^^^<\/span> cannot<\/span> assign<\/span> twice<\/span> to<\/span> immutable<\/span> variable<\/span>\r\n\r\nerror<\/span>:<\/span> aborting<\/span> due<\/span> to<\/span> previous<\/span> error<\/span>\r\n\r\nFor<\/span> more<\/span> information<\/span> about<\/span> this<\/span> error<\/span>,<\/span> try<\/span> `<\/span>rustc<\/span> --<\/span>explain<\/span> E0384<\/span>`.<\/span>\r\n<\/code><\/pre>\n
                Rust\u306e\u5909\u6570\u306e\u578b\u306b\u3064\u3044\u3066<\/h2>\n
                Rust\u306f\u9759\u7684\u578b\u4ed8\u3051\u8a00\u8a9e\u3067\u3042\u308b\u3002\u21d2\u3057\u305f\u304c\u3063\u3066\u3001\u5909\u6570\u306e\u578b\u3092\u6307\u5b9a\u3057\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3002<\/p>\n
                \u3053\u308c\u307e\u3067\u306f\u3001\u5909\u6570\u306e\u578b\u5ba3\u8a00\u3092\u884c\u3063\u3066\u3044\u306a\u3044\u306e\u306f\u306a\u305c\u304b\uff1f
                \n\u21d2\u305d\u308c\u306f\u3001Rust\u306b\u306f\u3001\u578b\u63a8\u8ad6\u3068\u3044\u3046\u6a5f\u80fd\u3092\u6301\u3063\u3066\u3044\u308b\u304b\u3089\u3067\u3042\u308b\u3002<\/p>\n
                \u3057\u304b\u3057\u3001\u95a2\u6570\u3092\u5b9a\u7fa9\u3057\u305f\u308a\u3001\u65b0\u3057\u3044\u30c7\u30fc\u30bf\u578b\u3092\u4f7f\u3046\u5834\u5408\u306b\u306f\u3001\u578b\u3092\u6307\u5b9a\u3057\u306a\u3044\u3068\u3044\u3051\u306a\u3044
                \n\u21d2Rust\u3067\u578b\u63a8\u8ad6\u304c\u6709\u52b9\u306b\u306a\u308b\u306e\u306f\u3001main\u95a2\u6570\u306e\u5185\u5074\u3060\u3051\u3060\u304b\u3089\u3067\u3042\u308b\u3002
                \n\u21d2Rust\u3067\u306f\u3001\u5927\u304d\u304f\u5206\u3051\u3066\u300c\u7b26\u53f7\u3042\u308a\u6574\u6570\u300d\u300c\u7b26\u53f7\u306a\u3057\u6574\u6570\u300d\u300c\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u300d\u306e3\u3064\u306e\u6570\u5024\u578b\u304c\u5b58\u5728\u3059\u308b\u3002<\/p>\n
                Rust\u3067\u5909\u6570\u306e\u578b\u3092\u6307\u5b9a\u3057\u305f\u3044\u3068\u304d\u306f<\/p>\n
                let \u5909\u6570\u540d: \u30c7\u30fc\u30bf\u578b = \u5024\r\n<\/code><\/pre>\n
                \u3068\u3044\u3046\u3088\u3046\u306b\u3057\u3066\u3092\u3059\u308b\u3002
                \n\u53c2\u7167
                \nRust\u306e\u6570\u5024\u578b\u3092\u30de\u30b9\u30bf\u30fc\u3057\u305f\u3044\uff08Part1\uff09<\/p>\n
                \u5229\u7528\u53ef\u80fd\u306a\u6570\u5024\u7bc4\u56f2\u3092\u51fa\u529b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002
                \n\u21d2\u6700\u5927\u5024\u3092\u300c\u578b::MAX\u300d\u3001\u6700\u5c0f\u5024\u3092\u300c\u578b::MIN\u300d\u3068\u3044\u3046\u98a8\u306b\u8868\u305b\u308b\u3002<\/p>\n
                fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    println!<\/span>(<\/span>\"\u7b26\u53f7\u3042\u308a\u6574\u6570\"<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"i8={}\u304b\u3089{}\"<\/span>,<\/span> i8<\/span>::<\/span>MIN<\/span>,<\/span> i8<\/span>::<\/span>MAX<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"i16={}\u304b\u3089{}\"<\/span>,<\/span> i16<\/span>::<\/span>MIN<\/span>,<\/span> i16<\/span>::<\/span>MAX<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"i32={}\u304b\u3089{}\"<\/span>,<\/span> i32<\/span>::<\/span>MIN<\/span>,<\/span> i32<\/span>::<\/span>MAX<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"i64={}\u304b\u3089{}\"<\/span>,<\/span> i64<\/span>::<\/span>MIN<\/span>,<\/span> i64<\/span>::<\/span>MAX<\/span>);<\/span>\r\n    \r\n    println!<\/span>(<\/span>\"\u7b26\u53f7\u306a\u3057\u6574\u6570\"<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"u8={}\u304b\u3089{}\"<\/span>,<\/span> u8<\/span>::<\/span>MIN<\/span>,<\/span> u8<\/span>::<\/span>MAX<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"u16{}\u304b\u3089{}\"<\/span>,<\/span> u16<\/span>::<\/span>MIN<\/span>,<\/span> u16<\/span>::<\/span>MAX<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"u32={}\u304b\u3089{}\"<\/span>,<\/span> u32<\/span>::<\/span>MIN<\/span>,<\/span> u32<\/span>::<\/span>MAX<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"u64={}\u304b\u3089{}\"<\/span>,<\/span> u64<\/span>::<\/span>MIN<\/span>,<\/span> u64<\/span>::<\/span>MAX<\/span>);<\/span>\r\n\r\n    println!<\/span>(<\/span>\"\u6d6e\u52d5\u5c0f\u6570\u70b9\"<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"isize={}\u304b\u3089{}\"<\/span>,<\/span> isize<\/span>::<\/span>MIN<\/span>,<\/span> isize<\/span>::<\/span>MAX<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"usize={}\u304b\u3089{}\"<\/span>,<\/span> usize<\/span>::<\/span>MIN<\/span>,<\/span> usize<\/span>::<\/span>MAX<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"usize=u{}\"<\/span>,<\/span> usize<\/span>::<\/span>BITS<\/span>);<\/span>\r\n}<\/span>\r\n\r\n>>><\/span>\r\n\u7b26\u53f7\u3042\u308a\u6574\u6570<\/span>\r\ni8<\/span>=-<\/span>128<\/span>\u304b\u3089127<\/span>\r\ni16<\/span>=-<\/span>32768<\/span>\u304b\u308932767<\/span>\r\ni32<\/span>=-<\/span>2147483648<\/span>\u304b\u30892147483647<\/span>\r\ni64<\/span>=-<\/span>9223372036854775808<\/span>\u304b\u30899223372036854775807<\/span>\r\n\u7b26\u53f7\u306a\u3057\u6574\u6570<\/span>\r\nu8<\/span>=<\/span>0<\/span>\u304b\u3089255<\/span>\r\nu160\u304b\u308965535<\/span>\r\nu32<\/span>=<\/span>0<\/span>\u304b\u30894294967295<\/span>\r\nu64<\/span>=<\/span>0<\/span>\u304b\u308918446744073709551615<\/span>\r\n\u6d6e\u52d5\u5c0f\u6570\u70b9<\/span>\r\nisize<\/span>=-<\/span>9223372036854775808<\/span>\u304b\u30899223372036854775807<\/span>\r\nusize<\/span>=<\/span>0<\/span>\u304b\u308918446744073709551615<\/span>\r\nusize<\/span>=<\/span>u64<\/span>\r\n\r\n<\/code><\/pre>\n
                Rust\u306f\u6587\u5b57\u3068\u6587\u5b57\u5217\u3092\u533a\u5225\u3059\u308b\uff1f<\/h1>\n
                Rust\u3067\u306f\u300c\u6587\u5b57\u300d\u3068\u300c\u6587\u5b57\u5217\u300d\u3092\u533a\u5225\u3059\u308b\u3002
                \n\u21d2’X’ \u3068\u3059\u308b\u3068\u6587\u5b57\u3068\u306a\u308a\u3001”X”\u3068\u3059\u308b\u3068\u6587\u5b57\u5217\u3068\u306a\u308b\u3002
                \n\u3064\u307e\u308a\u3001\u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u6587\u5b57\u3001\u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306f\u6587\u5b57\u5217\u306b\u4f7f\u3046\u3002<\/p>\n
                \u307e\u305f\u3001Rust\u3067\u306f\u3001\u300cas\u300d\u3092\u7528\u3044\u3066\u5f37\u5236\u7684\u306a\u578b\u5909\u63db\u3092\u884c\u3046\u3053\u3068\u304c\u53ef\u80fd\u3067\u3042\u308b\u3002<\/p>\n
                \/\/ as\u3067\u5f37\u5236\u578b\u5909\u63db\r\nlet \u5909\u6570\u540d = \u5909\u6570 as \u578b;\r\n<\/code><\/pre>\n
                \u95a2\u6570\u306e\u5b9a\u7fa9\u306b\u3064\u3044\u3066<\/h2>\n
                fn \u95a2\u6570\u540d\uff08\u5f15\u6570\u5ba3\u8a00\uff09-> \u623b\u308a\u5024 {\r\n       \u95a2\u6570\u306e\u5185\u5bb9\u3092\u8a18\u8ff0\r\n}\r\n<\/code><\/pre>\n
                \u95a2\u6570\u3092\u5ba3\u8a00\u3059\u308b\u3068\u304d\u306f\u3001\u5f15\u6570\u3084\u623b\u308a\u5024\u306e\u30c7\u30fc\u30bf\u578b\u3092\u660e\u8a18\u3057\u306a\u304f\u3066\u306f\u306a\u3089\u306a\u3044\u3002<\/p>\n
                fn<\/span> add<\/span>(<\/span>x<\/span>:<\/span> i64<\/span>,<\/span> y<\/span>:<\/span> i64<\/span>)<\/span> -><\/span> i64<\/span> {<\/span>\r\n    x<\/span> +<\/span> y<\/span>\r\n}<\/span>\r\n\r\nfn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> a_b<\/span> =<\/span> add<\/span>(<\/span>15<\/span>,<\/span> 30<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"15+30={}\"<\/span>,<\/span> a_b<\/span>)<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                Rust\u3067\u306f\u3001\u95a2\u6570\u306e\u5024\u3092\u8fd4\u3059\u65b9\u6cd5\u304c2\u3064\u3042\u308a\u307e\u3059\u3002
                \n\u21d2\u5024
                \n\u21d2return \u5024;<\/p>\n
                \u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\uff08add\u95a2\u6570\uff09\u306e\u4f8b\u3067\u306f\u3001\u300c\u5024\u300d\u306e\u307f\u3092\u8a18\u8ff0\u3057\u3066\u95a2\u6570\u304b\u3089\u5024\u3092\u8fd4\u3057\u3066\u3044\u308b\u3002
                \n\u3053\u308c\u3092return \u5024;\u306e\u3088\u3046\u306b\u3082\u8a18\u8ff0\u3067\u304d\u308b\u3002
                \n\u3053\u3053\u3067\u306e\u9055\u3044\u306f\u3001\u300c;\u300d\u30bb\u30df\u30b3\u30ed\u30f3\u306e\u6709\u7121\u306b\u6ce8\u76ee\u3002return\u3092\u4f7f\u3046\u3068return\u6587\u3068\u306a\u308b\u306e\u3067\u3001\u300c;\u300d\u304c\u5fc5\u8981\u306b\u306a\u308b\u3002<\/p>\n
                \u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u3092\u4f7f\u3063\u3066\u307f\u308b<\/h2>\n
                Rust\u306e\u300c\u30af\u30ed\u30fc\u30b8\u30e3\u300d\u3068\u306f\u3001Python\u3067\u3044\u3046\u300c\u30e9\u30e0\u30c0\u95a2\u6570\u306e\u3053\u3068\u300d\u3067\u3042\u308b\u3002<\/p>\n
                let \u540d\u524d = |\u5f15\u6570| \u5b9a\u7fa9;\r\n<\/code><\/pre>\n
                \u4f8b\u3067\u3001\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u8a18\u8ff0\u3057\u3066\u307f\u308b\u3002<\/p>\n
                fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    \/\/ \u30af\u30ed\u30fc\u30b8\u30e3<\/span>\r\n    let<\/span> x<\/span> =<\/span> |<\/span>a<\/span>|<\/span> a<\/span>+<\/span>100<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> x<\/span>(<\/span>10<\/span>));<\/span>\r\n}<\/span>\r\n\r\n>>><\/span>110<\/span>\r\n<\/code><\/pre>\n
                Rust\u3067\u914d\u5217\u3092\u7528\u610f\u3059\u308b<\/h2>\n
                \/\/ \u914d\u5217\u8981\u7d20\u6570\u306e\u914d\u5217\u3092\u521d\u671f\u5024\u3067\u521d\u671f\u5316\u3059\u308b\r\nlet mut \u914d\u5217\u540d = [\u521d\u671f\u5024; \u914d\u5217\u8981\u7d20\u6570];\r\n\r\n\/\/ \u914d\u5217\u306b\u5024\u3092\u4ee3\u5165\r\n\u914d\u5217\u540d[\u8981\u7d20\u756a\u53f7] = \u5024;\r\n\r\n\/\/ \u8981\u7d20\u306e\u53d6\u5f97\r\nlet \u5909\u6570 = \u914d\u5217\u540d[\u8981\u7d20\u756a\u53f7];\r\n<\/code><\/pre>\n
                fn<\/span> main<\/span>()<\/span> {<\/span>\r\n   let<\/span> mut<\/span> a<\/span> =<\/span> [<\/span>0<\/span>;<\/span> 10<\/span>];<\/span>\r\n   a<\/span>[<\/span>0<\/span>]<\/span> =<\/span> 999<\/span>;<\/span>\r\n   let<\/span> x<\/span> =<\/span> a<\/span>[<\/span>0<\/span>];<\/span>\r\n   println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> x<\/span>)<\/span>\r\n}<\/span>\r\n\r\n>>><\/span>999<\/span>\r\n<\/code><\/pre>\n
                \u53c2\u8003\u56f3\u66f8<\/h2>\n
                \u624b\u3092\u52d5\u304b\u3057\u3066\u8003\u3048\u308c\u3070\u3088\u304f\u5206\u304b\u308b\u3000\u9ad8\u52b9\u7387\u8a00\u8a9e\u3000Rust\u306e\u66f8\u304d\u65b9<\/p>\n","protected":false},"excerpt":{"rendered":"
                \u3053\u306e\u8a18\u4e8b\u306fRust\u3092\u89e6\u308a\u59cb\u3081\u3066\uff12\u65e5\u76ee\u306e\u521d\u5fc3\u8005\u304c\u66f8\u3044\u3066\u3044\u307e\u3059\u3002\u3053\u3046\u66f8\u3044\u305f\u65b9\u304c\u308f\u304b\u308a\u3084\u3059\u3044\u3001\u3053\u3053\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u306a\u3069 […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45038","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/45038-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u3053\u306e\u8a18\u4e8b\u306fRust\u3092\u89e6\u308a\u59cb\u3081\u3066\uff12\u65e5\u76ee\u306e\u521d\u5fc3\u8005\u304c\u66f8\u3044\u3066\u3044\u307e\u3059\u3002\u3053\u3046\u66f8\u3044\u305f\u65b9\u304c\u308f\u304b\u308a\u3084\u3059\u3044\u3001\u3053\u3053\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u306a\u3069 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/45038-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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